Picker-motion for power-looms



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W. STEARNS. PIGKER MOTION FOR POWER LOOMS.

310 2 1,668. Patented July 5, 1859.

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W. STEARNS. PIOKER- MOTION FOR POWER LOOMSL N9. 24,668. Patented July 5, 1859.

Witnesses. lm/ezzior. Q0. AZ; 7 11am 3251M n4: NoRms pzrzas coy. PHOfO-LIYNQ. WASHINGTON, o c.

UNITED STATES PATENT OFFICE.

WILLIAM STEABNS OF MANCHESTER, NEW HAMPSHIRE.

PICKER-MOTION FOR POWER-'LOOMS.

Specification of Letters Patent No. 24,668, dated July 5, 1859'.

To all whom it may concern:

Be it known that I, WILLIAM S'rEARNs, of Manchester, in the county of Hillsboro and State of New Hampshire, have invented a new, useful, and Improved Picker-Motion for Power-Looms; and I do hereby declare that the same is described and represented in the following specification and drawings.

To enable others skilled in the art to make and use my invention I will proceed to describe its construction and operation referring to the drawings in which the same letters indicate like parts in each of the figures.

Figure 1, is a plan or top view of the picker motion. Fig. 2, is an elevation of one side and Fig. 3, of the end of the same.

The nature of my improvement in picker motions to power looms consists in extending the picker staff down through the rocker and rail on which the rocker works so as to aid in holding the rocker in its proper position on the rail. And in arranging and constructing the rocker to receive the picker staff and permit it to be readily adjusted to remedy any defect in the staff rocker or rail. Also in a hook on the underside of the rocker, to work through the rail and prevent the end of the picker staff from rising above the rail, when the loom is run fast. And further in making a stud for a coiled spring to work on, smaller in the middle than at the ends so as to allow the spring to contract in diameter as it is drawn in working; lastly in making that portion of the stud surrounded by the stationary end of the coiled spring permanent, or stationary, and that portion surrounded by the moving end of the spring, to revolve, to facilitate the working of the spring.

In the accompanying drawing A, is the hub or rail of cast iron made in the form shown in the drawing or in such other form as will answer the purpose; and perforated as shown by the dotted lines 13, B, in Fig. 2, for the end of the rock-shaft of the lay of the loom, to which it is applied and fastened by the screw C, 1. The top of the rail A, is level or flat for the rocker D, to work on, and it has a score or slot in it for the roller E, shown in dotted lines in Fig. 2, and which turns on the pin F, the hook, G, and picker staff H, both pass down through and work freely in this slot in the rail A.

The rocker D, may be made in the form shown in the drawing or in such other form as will answer the purpose, that is, its under side is curved as shown in Fig. 2, and the arm I, extends up from its top, and is provided with a score for the shank of the hook G, and for the picker staff H, as shown by dotted lines in Fig. 2, both of which are fastened to the arm I, by the bolt J, and clip K, as shown in the drawings. The arm I, is braced by the flange L, and the rocker D, has a hole through it so that the hook G, and picker staff H, both pass down through the rocker D, and rail A, as shown by dotted lines in Fig. 2. I

The upper end of the arm "I, is provided with a set screw M, which is made to act against the shank of the hook G, so that by unscrewing the bolt J ,and screwing in the screw M, the position of the picker staff may be varied and adjusted as desired, to operate the shuttle of the loom. The upper end of the picker staff is drawn forward to throw the shuttle in the 100111 by a strap applied around or connected to the picker staff above the rocker and arm I, and the picker staff H, is drawn back after it has thrown the shuttle, by the leather strap N, fastened to the staff by the clip K, and connected to the spiral sprin P, as shown in the drawing.

The standar R, projects from the back side of the rail A, and extends down to support the stud S, shown in Fig. 4:, which is fastened to it by the screw T, which passes through the stand and screws into the stud This'stud is made conical as shown in the drawing and has the notch U, (in it see Fig. 4,) which receives and holds the end of the spring P, which spring works on the stud S, and on the collar V, which collar is arranged to turn on the end of the stud S, shown by dotted lines in Fi at. The end of the stud S, beyond the collar V, is made square to receive a wrench to turn the stud, and draw spring P, to apply a proper draft 011 the strap N, and hold the stud, while the screw T, is tightened to fasten it. The stud, S, and collar, V, are made conical, or tapering toward each other, as shown in Fig. at, so as to allow the coiled spring, P, to contract in diameter in the middle as it is drawn by the strap N.

Fig. 5, is a drawing of a rocker with the hook G, cast on but as the hook when cast on is somewhat liable to be broken off, I'

think they are preferable when cast Without the hook which may be applied as shown in Fig. 2, the bolt J, passing through it and the set screw M, acting against it, to adjust the picker stick H. I so arrange the curve of the rocker that when the picker staff is bolted to it without bearing upon the set screw, that the staff will fall at the striking point of the shuttle. Then by loosening the bolt, and applying the set screw M, I can make the stafi throw the shuttle straight or raise it as desired, which is often desirable in weaving, particularly if the rocker or rail should be worn away a little. There is great utility in making the staff adjustable in the rocker, as it enables the weaver to work a sprung or imperfect stick or staff, or remedy any little defect in the rocker or rail, which might otherwise subject him to great inconvenience. The hook at the end of the picker staff prevents the end of the staff, from being drawn out of the score or slot in the rail, Which is a very great advantage in looms that run fast.

I believe I have described my invention and improvements in the picking motion of looms so as to enable one skilled in the art to make and use it; I will now state what I desire to secure by Letters Patent.

the rail as described.

2. I claim the. rocker D, made to receive the staff in the way and manner described.

3. And in combination with the rocker D, I claim the hook Gr,or Gr, whether made separate or cast on the rocker for the purposes set forth.

4;. I claim making the picker staff adjustable in the rocker, in the manner described, or in some equivalent manner.

5. I claim making the stud surrounded by the coiled spring P, smaller in the middle than at the ends, to allow the spring to con tract in diameter in the middle as it is drawn in working.

6. I also claim making that portion of the stud surrounded by the stationary end of the coiled spring, permanent or stationary, and that portion surrounded by the moving end of the spring to revolve, to facilitate the working of the spring.

WILLIAM STEARNS.

V'Vitnesses:

GEO. BELL, B. P. CILLEY. 

